A Čech coboundary is the image of a cochain in the preceding degree. Multiplicatively, a zero-cochain changes a one-cocycle by .

Ancestors (10)

  1. Čech cochain complex
  2. Čech cohomology
  3. Sheaf cohomology
  4. Sheaf of modules
  5. Ringed space
  6. Algebraic geometry
  7. Geometry and topology
  8. Area of mathematics
  9. Mathematics
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